I watch the invading army march up the main street towards the castle. But there is no fighting, raping, or pillaging. Our kingdom was saved at the last moment by a deal. A deal for me to be married off to the invaders king. I don't want to be married off to a tyrant, but their forces are clearly superior and their magics are beyond anything we know of. Before long I have made my tearful goodbyes and left the only place I've known as home. I am taken into the carriage they have waiting for me.

The carriage is pulled by a strange six legged creature that can barely move faster than a walk. I take the time to put on a brave face for my subjects and wave at them as I'm slowly taken out of the city. Once the city is over the horizon one of the stewards approaches me. I assume to talk to me about what is to happen, but instead he puts a metal bracelet on each of my wrists. Just as I realise they're magical he grabs me and throws me from the carriage.

"You walk from here." he says spitefully.

The carriage carries on with no concern for me. I feel the bracelets tighten and with a jerk they stick themselves together. Then I notice they're attached to the carriage by a long chain, I get up quickly to avoid being dragged along the mud. The speed is just above a brisk walk making me walk as fast as I can and then jog occasionally just to avoid being pulled over by my wrists. My dress is not designed for walking and stops me taking long strides hindering me even more. I shout at the carriage, at the riders, for anyone to help me. But no one cares.

But nightfall I sweating, my legs are shaking with exertion, my wrists are bruised and cut from the bracelets, and yes I fell several times and was dragged ruining my dress with mud and rips.

The steward finally exits the carriage. We must be stopping for the night. He comes and walks beside me, his long legs easily keeping pace with the cart.

"This won't do at all," He says looking down at my dress. With a flash of magic it falls to the floor around me and is quickly left behind as I'm pulled along. I try to object but I'm too tired. He appraises my body in my underwear. "Definitely not."

Another flash and I feel a strange ache in my chest. I look down and I see my breasts growing before my very eyes. They're pushing against my corset until with a rip it falls off me leaving my breasts exposed. I cover my expanding chest with my arms. They finally stop growing once they reach about the size of my own head.

"This is madness." I manage to say.

"Your new husband, The King, will like them though I'm sure. We should make the city by sunrise, and there all of the city will be introduced to you. Isn't it exciting Princess?"

With that he skips forwards and gets back into the carriage. I'm too stunned to speak I'm expected to walk through the night too. And naked! As I'm not paying attention the chain goes taught pulling my arms along making me drop my now heavy breasts and they bounce painfully as I struggle, again, to keep up with the carriage.

This is just an example of the kind of world I'm thinking of. We could have a different start. But the main thrust of the story I want is a princess humiliated, with enf, dirt, overwork, sex work, orgasm denial, being made fun of for being horny, body modification, etc.

Which Princess is up for grabs. I have been imagining Zelda, but feel free to offer other ideas. I have a full kink/limits list in my profile.

DMs only please.